Finding the Fourth Proportional to 98,108.75, 135,390.08 and 53,396.75
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Solution
The fourth proportional to 98,108.75, 135,390.08 and 53,396.75 is: 73,687.52
Step by Step Solution
- Step 1: Write the proportion equation
98,108.75 : 135,390.08 = 53,396.75 : x - Step 2: Convert to fraction form
98,108.75/135,390.08 = 53,396.75/x - Step 3: Cross multiply
98,108.75x = 135,390.08 × 53,396.75 - Step 4: Simplify right side
98,108.75x = 7,229,390,254.24 - Step 5: Solve for x
x = 7,229,390,254.24/98,108.75 - Step 6: Final answer
x = 73,687.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.